Or maybe your industry just has very few, but very large, clients. Like spaceflight (SpaceX).

If anything, I remember when the U.S. Senate Appropriations Committee was picking favourites - and that favourite was ULA. Elon gave them hell.

https://m.youtube.com/watch?v=upnx_DD9zSQ

On the other hand, SpaceX has a handful of very large clients, and around 12 million small clients, which probably provide a less clumpy income.